单项选择题 软件项目计划阶段所产生的文档有(11)、(12)。

单项选择题 在面向对象的系统中，系统责任的良好分配原则是(27)。软件配置项是软件配置管理的对象，即软件工程过程中产生的(28)。软件测试计划中的白盒测试是属于(29)个阶段的测试。

单项选择题 The kernel is the(66)of an operating system such as Windows98, Windows NT, Mac OS or Unix. The kernel provides basic services for the other parts of the operating system,(67)it possible for it to run several programs at once(multitasking), read and write files and connect to networks and peripherals. Applications and utility programs use the services provided by the kernel to provide practical business functionality.In operating systems such as Windows or most versions of Unix, the kernel(68)everything except application and utility programs.In microkernel operating systems such as Digital Unix and Apples forthcoming Mac OS Server, the kernel(69)supports only multitasking and memory management. Other services such as applications, utilities and the user interface support device drivers, API and graphics which all(70)outside the microkernel.

单项选择题 DW的多维数据模型将数据看成数据立方体形式，由①和②组成。

单项选择题 一个基本的计算机硬件系统，从功能的角度包括（）五大功能部件。